Invention Application
- Patent Title: MOTOR AND ROTARY DRIVE APPARATUS
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Application No.: US16145312Application Date: 2018-09-28
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Publication No.: US20190131858A1Publication Date: 2019-05-02
- Inventor: Junya MIZUKAMI
- Applicant: Nidec Corporation
- Priority: JP2017-207137 20171026
- Main IPC: H02K21/22
- IPC: H02K21/22 ; H02K7/04 ; H02K11/00 ; H02K11/22

Abstract:
A motor includes a stationary portion including a stator, and a rotating portion supported to be rotatable about a central axis extending in a vertical direction with respect to the stationary portion. The rotating portion includes a rotor hub portion extending in an annular shape around the central axis, a magnet including a pole surface radially opposite to the stator, a yoke fixed to a radial outside of the magnet, and connected to the rotor hub portion, a flywheel axially above the rotor hub portion, a first seal portion extending in an annular shape radially outside of the yoke; and a second seal portion extending in an annular shape radially outside of the first seal portion.
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